TM 5-1940-322-24
0166 00
TRANSMISSION REPAIR (Contd)
CLEANING AND INSPECTION
1.
For general cleaning and inspection instructions, refer to WP 0013 00.
2.
For general transmission inspection, refer to WP 0165 00.
WARNING
Skysol 100 solvent is combustible; DO NOT use or store near heat,
sparks, flame, or other ignition sources. Use mechanical ventilation
whenever product is used in a confined space, heated above ambient
temperatures, or agitated. Keep container sealed when not in use.
Contact with Skysol 100 may cause skin irritation. Use chemical-
resistant gloves. In case of skin contact, remove any contaminated
clothing and wash skin thoroughly with soap and water. Wash
contaminated clothing before reuse. Eye contact may cause irritation,
tearing, or blurring of vision. Use face shield or goggles when eye
contact may occur. In case of eye contact, flush eyes with large
amounts of water for at least 15 minutes or until irritation subsides.
Inhalation may cause irritation to upper respiratory passages. DO
NOT have food or drink in the vicinity. Failure to comply may result in
injury to personnel.
2.
Clean excess gasket material from housing mating surfaces with Skysol 100 and dry with cloth.
3.
Remove excess oil and clean inside housings with Skysol 100 and dry with cloth.
4.
Inspect threaded openings in housings for damage. If threads are damaged, chase threads with
correctly sized tap.
5.
Inspect all oil passages for obstructions. If obstructed, clean oil passages with wire and flush with
Skysol 100.
6.
Inspect valve seats for burrs, nicks, and scratches. If damage is noted, replace valve seats.
7.
Inspect tapered roller bearings for roughness of rotation. Replace bearings if rotation is rough.
8.
Inspect bearings for corrosion, scores, scratches, cracks, pitted or chipped races, and indications of
excessive roller wear. If worn or damaged, replace damaged bearing and bearing race.
9.
Inspect thrust race washers and washers for distortion, scores, burrs, and wear. If damage is noted,
replace thrust race washers and washers.
10.
Inspect gears for scuffs, nicks, burrs, or broken teeth. If damage is noted, replace gears.
11.
Inspect gear thrust faces for scores, scratches, and burrs. If damage is noted, replace gears.
12.
Inspect all splines for signs of, twists, chips, or burrs. If damage is noted, replace damaged parts.
13.
Inspect snaprings for distortion. Replace any distorted snaprings.
14.
Inspect springs for broken or distorted coils. Replace any broken or distorted springs.
SELECTOR VALVE ASSEMBLY
1.
Install new O-ring (9), pressure regulating piston (10), and detent plate (16) on selector valve stem (11).
2.
Apply light coat of grease to O-ring (9) and selector valve stem (11) and install selector valve stem (11)
in manifold assembly (8) with two screws (15). Tighten screws (15) to 19 lb-ft (26 Nm).
3.
Install shims (5), inner spring (6), outer spring (7), and piston (4) in manifold assembly (8) as noted at
removal.
4.
Install new O-ring (3) on plug (2). Apply light coat of grease to O-ring (3) and install plug (2) in
manifold assembly (8) with snapring (1).
5.
Install selector valve lever (14) on valve stem (11) with screw (13) and nut (12).
FRONT HOUSING ASSEMBLY
1.
Install new input shaft oil seal (17) on front housing (18).
2.
Do not install adjusting shims (19) or tapered-roller bearing races (20), (21), and (22) until end play is
checked.
0166 00-10